"Native pig" is a pig that local pig breeds feed retail investors with farm feed. Regardless of the advantages and disadvantages of local pigs and hybrid pigs in pig breeding, there are far more hidden dangers in the breeding process of "local pigs" than "feed pigs": most of the self-produced grain used by free-range "local pigs" is aged grain, even moldy grain is still used as feed because of poor storage, and toxic substances such as aflatoxin cannot be effectively solved; Green feed is generally vines, leaves and stems of crops such as grain and vegetables, and pesticide residues directly harm pigs; Free-range "local pigs" often feed leftovers, rotten fruits and vegetables, swill and so on. It is difficult to control the parasitic disease of "local pig" if it is not treated according to the prescribed methods; Most of the "local pigs" are raised by experienced free-range households. Once the pig disease occurs, it will go its own way from diagnosis to treatment, and there are often problems such as indiscriminate drug use, human drug use and veterinary drug use. The breeding of "local pigs" is often a traditional environment where people and animals live together, which is not only easy to induce diseases of people and animals, but also has low enclosure and worrying sanitary conditions. And so on, we can clearly see that local pigs are by no means synonymous with safe pork and green food. The "local pig" is like this, as are all livestock and poultry such as pigs, cows, sheep, chickens, ducks and geese!
In contrast, "feed pigs" fed with industrial feed, corn, soybean meal, fish meal and other raw materials and various additives used in feed production have strict quality inspection standards. The large-scale breeding of "feed pigs" not only greatly improves the farm environment compared with retail investors, but also generally has resident veterinarians and strict disinfection and epidemic prevention systems, and the whole breeding process is always in a controlled state that can pass the physical and chemical indicators.
It should also be noted that "local pigs" and other free-range livestock and poultry are generally raised in small quantities, which can only meet the food needs of farmers. At present, most of the commercial livestock and poultry meat, eggs, milk and their products sold in the market are raised on a large scale with feed, and there are very few real "local pigs" and other livestock and poultry. The blind pursuit of "dirty" will only encourage some vendors to cheat and operate, and even leave an opportunity for criminals. In 2006, the "red-heart duck egg" incident in China was triggered by criminals taking advantage of people's willingness to consume "red-heart earth eggs" and adding Sudan red. The lesson is profound.